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Heat-resistant cast steel, whose materials and behavior are known from petrochemistry. However, this experience must be broken down to be applied to a significantly smaller component size and the fine wall thicknesses of the turbochargers. The qualities have high proportions of chrome and nickel, which has a particularly positive influence on stability and thermal-shock resistance. With the concept for the gating and feeder system, which is to be removed from the cast part with as little effort as possible, becomes significantly more complex. This requires high-quality filters for casting the material in as stabilized a way as possible. Due to the small component size and gate area, optimum efficiency of the feeders must be ensured at the same time.
Heat-resistant cast steel, whose materials and behavior are known from petrochemistry. However, this experience must be broken down to be applied to a significantly smaller component size and the fine wall thicknesses of the turbochargers. The qualities have high proportions of chrome and nickel, which has a particularly positive influence on stability and thermal-shock resistance. With the concept for the gating and feeder system, which is to be removed from the cast part with as little effort as possible, becomes significantly more complex. This requires high-quality filters for casting the material in as stabilized a way as possible. Due to the small component size and gate area, optimum efficiency of the feeders must be ensured at the same time.
